From 22161a71ed6cfc01ef486f8b39a5c9cc4a1779ca Mon Sep 17 00:00:00 2001
From: Miguel Freitas <miguel@cptibr.org>
Date: Fri, 1 Nov 2013 15:13:37 -0200
Subject: [PATCH] fix deadlock

---
 src/twister.cpp | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/twister.cpp b/src/twister.cpp
index 71feab05..9f427524 100644
--- a/src/twister.cpp
+++ b/src/twister.cpp
@@ -69,8 +69,10 @@ sha1_hash dhtTargetHash(std::string const &username, std::string const &resource
 
 torrent_handle startTorrentUser(std::string const &username)
 {
+    bool userInTxDb = usernameExists(username); // keep this outside cs_twister to avoid deadlock
+
     LOCK(cs_twister);
-    if( !m_userTorrent.count(username) && usernameExists(username) ) {
+    if( !m_userTorrent.count(username) && userInTxDb ) {
         sha1_hash ih = dhtTargetHash(username, "tracker", "m");
 
         printf("adding torrent for [%s,tracker]\n", username.c_str());